Finding the Fourth Proportional to 778,576.20, 1,167,864.30 and 512,855.70
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Solution
The fourth proportional to 778,576.20, 1,167,864.30 and 512,855.70 is: 769,283.55
Step by Step Solution
- Step 1: Write the proportion equation
778,576.20 : 1,167,864.30 = 512,855.70 : x - Step 2: Convert to fraction form
778,576.20/1,167,864.30 = 512,855.70/x - Step 3: Cross multiply
778,576.20x = 1,167,864.30 × 512,855.70 - Step 4: Simplify right side
778,576.20x = 598,945,863,081.51 - Step 5: Solve for x
x = 598,945,863,081.51/778,576.20 - Step 6: Final answer
x = 769,283.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.